CS/QA: use camelCase variable names (sirbrillig#255)

This fixes up the two places/three variables in the code base which didn't comply.

Co-authored-by: jrfnl <jrfnl@users.noreply.github.com>

Author: jrfnl

VariableAnalysis/Lib/Helpers.php

@@ -447,7 +447,7 @@ private static function getStartOfTokenScope(File $phpcsFile, $stackPtr) {
 		$tokens = $phpcsFile->getTokens();
 		$token = $tokens[$stackPtr];
 
-		$in_class = false;
+		$inClass = false;
 		$conditions = isset($token['conditions']) ? $token['conditions'] : [];
 		$functionTokenTypes = [
 			T_FUNCTION,
@@ -458,11 +458,11 @@ private static function getStartOfTokenScope(File $phpcsFile, $stackPtr) {
 				return $scopePtr;
 			}
 			if (isset(Tokens::$ooScopeTokens[$scopeCode]) === true) {
-				$in_class = true;
+				$inClass = true;
 			}
 		}
 
-		if ($in_class) {
+		if ($inClass) {
 			// If this is inside a class and not inside a function, this is either a
 			// class member variable definition, or a function argument. If it is a
 			// variable definition, it has no scope on its own (it can only be used

VariableAnalysis/Sniffs/CodeAnalysis/VariableAnalysisSniff.php

@@ -1597,32 +1597,32 @@ protected function processCompactArguments(File $phpcsFile, $stackPtr, $argument
 			if (!isset($tokens[$argumentPtrs[0]])) {
 				continue;
 			}
-			$argument_first_token = $tokens[$argumentPtrs[0]];
-			if ($argument_first_token['code'] === T_ARRAY) {
+			$argumentFirstToken = $tokens[$argumentPtrs[0]];
+			if ($argumentFirstToken['code'] === T_ARRAY) {
 				// It's an array argument, recurse.
-				$array_arguments = Helpers::findFunctionCallArguments($phpcsFile, $argumentPtrs[0]);
-				$this->processCompactArguments($phpcsFile, $stackPtr, $array_arguments, $currScope);
+				$arrayArguments = Helpers::findFunctionCallArguments($phpcsFile, $argumentPtrs[0]);
+				$this->processCompactArguments($phpcsFile, $stackPtr, $arrayArguments, $currScope);
 				continue;
 			}
 			if (count($argumentPtrs) > 1) {
 				// Complex argument, we can't handle it, ignore.
 				continue;
 			}
-			if ($argument_first_token['code'] === T_CONSTANT_ENCAPSED_STRING) {
+			if ($argumentFirstToken['code'] === T_CONSTANT_ENCAPSED_STRING) {
 				// Single-quoted string literal, ie compact('whatever').
 				// Substr is to strip the enclosing single-quotes.
-				$varName = substr($argument_first_token['content'], 1, -1);
+				$varName = substr($argumentFirstToken['content'], 1, -1);
 				$this->markVariableReadAndWarnIfUndefined($phpcsFile, $varName, $argumentPtrs[0], $currScope);
 				continue;
 			}
-			if ($argument_first_token['code'] === T_DOUBLE_QUOTED_STRING) {
+			if ($argumentFirstToken['code'] === T_DOUBLE_QUOTED_STRING) {
 				// Double-quoted string literal.
-				if (preg_match(Constants::getDoubleQuotedVarRegexp(), $argument_first_token['content'])) {
+				if (preg_match(Constants::getDoubleQuotedVarRegexp(), $argumentFirstToken['content'])) {
 					// Bail if the string needs variable expansion, that's runtime stuff.
 					continue;
 				}
 				// Substr is to strip the enclosing double-quotes.
-				$varName = substr($argument_first_token['content'], 1, -1);
+				$varName = substr($argumentFirstToken['content'], 1, -1);
 				$this->markVariableReadAndWarnIfUndefined($phpcsFile, $varName, $argumentPtrs[0], $currScope);
 				continue;
 			}